Which of the following is a sign of electrical panel overheating?

Flickering lights are indeed a significant indicator of potential issues with electrical panels, specifically signs of overheating. When an electrical panel overheats, it may not maintain a consistent flow of electricity, leading to fluctuations in power. These fluctuations can cause lights to flicker as the supply of electricity is temporarily interrupted or diminished.

This intermittent supply affects the stability of the electrical system, which often leads to visible symptoms like flickering lights. It suggests that the panel is struggling to deliver the required voltage consistently, which can be due to overheating components or other underlying issues within the panel.

Recognizing flickering lights as a symptom enables technicians to investigate further, potentially preventing more severe electrical failures or hazardous situations that overheating can cause in an electrical system.